Abstract
The inhibition of the corrosion of Al in 2N hydrochloric acid solution by some biacetylmonoxime hydrazone derivatives has been studied using weight-loss, thermometric and galvanostatic techniques. The three techniques gave concordant results. The inhibition efficiency of the additives increases in the order: I > II > III > IV > V. The inhibitors appear to function through general adsorption following the Langmuir adsorption isotherm. These compounds were excellent inhibitors for acidic corrosion of Al and inhibited both cathodic and anodic reactions. 8 ref.--AA(US).